4-Hydroxy-4-methyldihydro-2H-pyran-2,6(3H)-dione

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Names

[ CAS No. ]:
34695-32-4

[ Name ]:
4-Hydroxy-4-methyldihydro-2H-pyran-2,6(3H)-dione

[Synonym ]:
4-hydroxy-4-methyloxane-2,6-dione
2H-Pyran-2,6(3H)-dione, dihydro-4-hydroxy-4-methyl-
4-Hydroxy-4-methyldihydro-2H-pyran-2,6(3H)-dione

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
315.2±35.0 °C at 760 mmHg

[ Melting Point ]:
97-99ºC

[ Molecular Formula ]:
C6H8O4

[ Molecular Weight ]:
144.125

[ Flash Point ]:
138.3±19.4 °C

[ Exact Mass ]:
144.042252

[ PSA ]:
63.60000

[ LogP ]:
-1.47

[ Vapour Pressure ]:
0.0±1.5 mmHg at 25°C

[ Index of Refraction ]:
1.500

Safety Information

[ HS Code ]:
2918199090

Customs

[ HS Code ]: 2918199090

[ Summary ]:
2918199090 other carboxylic acids with alcohol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Related Compounds

  • 4-(4-NITROPHENYL)DIHYDRO-2H-PYRAN-2,6(3H)-DIONE
  • 4,4-bis(4-methoxyphenyl)oxane-2,6-dione
  • 4-(4-bromophenyl)oxane-2,6-dione
  • 5-acetyl-4-hydroxy-3-[1-[(4-hydroxy-3-nitrophenyl)amino]ethylidene]-2H-pyran-2,6(3H)-dione
  • (5Z)-3-acetyl-4-hydroxy-5-[1-(4-methylanilino)ethylidene]pyran-2,6-dione
  • (5Z)-3-acetyl-4-hydroxy-5-[1-(pentylamino)ethylidene]pyran-2,6-dione